Cita APA (7a ed.)

Digital Libraries'99, ACM International Conference on Digital Libraries Corporate Author, Association for Computing Machinery-Digital Library, Rowe, N. C. C., & Fox, E. A. (1999). Proceedings of the fourth ACM Conference on Digital Libraries. ACM.

Cita Chicago Style (17a ed.)

Digital Libraries'99, ACM International Conference on Digital Libraries Corporate Author, Association for Computing Machinery-Digital Library, Neil Charles Contributor Rowe, y Edward A. Fox. Proceedings of the Fourth ACM Conference on Digital Libraries. New York: ACM, 1999.

Cita MLA (9a ed.)

Digital Libraries'99, et al. Proceedings of the Fourth ACM Conference on Digital Libraries. ACM, 1999.